Self-heating soldering-iron.



'PATENTBD APR. 16, 1907.

R. W. MARVELL. SELF HEATING SOLDER-ING IRON.

APPLICATION FILED JULYll. 1906.

2 SHEETS-SHBET l.

3 wuenkoz arianna,

Wi b1 nous /MM M? @zZ/ THE NaRRls Prrss co., wAsHINaroN, h. c.

- fyi No. 850,386. PATBNTED APR. 16, 1907.

R. W. MARVELL. SELF HEATING SOLDBRING IRON.

APPLICATION FILED JULY 11, 1906 2 SHEETS-SHEET 2.

THE Namzxs Ermes cq., wllsmanrou. n c.

I attain, l

ROY VILLIAMS MARVELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO BENNETT-MARVELL MANUFAO OF DELAWARE.

TURING COMPANY, A CORPORATION SELF-HEATlNG SQLDERlNGvlF-RON.

Specification of Letters Patent.

fatenteoi April 16, 1907.

Application filed July ll, 1906. Serial No. 325,559.

Be it known that I, ROY WILLIAMS MAR- vELL, a citizen of the United States, residing l at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania,

.have invented certain new and useful Imtional view of the handle.

proveniente in Self-Heating Soldering-Irons, l of which the following is a specification.

My invention relates to an improvement in self-heating soldering-irons, the object of which is to provide a soldering-iron with the self-heating features, that the heating stove or pot, as it is usually termed, used for the purpose of heating the iron may be dispensed 1 with, and to provide an iron whereby the fuel used in heating it can be more conveniently carried; also, to provide an iron of such simple construction that the several parts may be easily and quickly disconnected for the purpose of being cleansed, and also that the iron can be rendered so compact that it can be conveniently carried and easily assembled and ready for use when desired.

In the construction of this iron many features are improvedupon those as shown in my pending application for Letters Patent, Serial No. 306,637, filed March I7, 1906, the main features of improvement lbeing that the needle-valve is so constructed that to a certain extent the extended part is to a certain degree protected from the possibility of accidental injury of bending the stem by being brought into contact with some object while using the iron. Again, it is found advantageous to have the air-pump secured to the iron, and by securing it within the handle it is found that it is more preferable than carrying it as a separate article, inasmuch as it is out of damaged in the use of the iron, as would be if exteriorly secured thereto.

Other features by way of improvement will be described in the detailed description hereof.

Vith the foregoing object in view my invention consists in certain novel features of construction and combination of parts, which will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a sectional elevation of an iron constructed in accordance with my invention. a side view of the nut which smaller end of the handle,

forms the 'he way and not liable to become l Fig. 2 is y showing the threaded inner portion and the exterior nutted portion. Fig. 3 is a side view of a short section of pipe Fig. 4, a side view of an S-shaped connection. Fig. 5 is a side view of a U-shaped connection. Fig. 6 is a sec- Fig. 7 is a side view of the head, and Fig. 8 is an end view. Fig. 9 is an end view of the point, and Fig. 10 is a side view of said point.

A is a hollow metallic handle adapted to be filled with gasolene or other similar fuel and termed the fuel-chamber.7

B is an air-pump which is removably secured within the handle by means of the .threaded portion 1 of the pump being screwed within the inwardly-threaded end portion 2 of the handle. The character of the pump is well known and is of the kind in universal use, and the construction of the same is so well known and understood that no description of same is necessary here. l

O is a heXagon nut provided with the threaded portion and the extension 4, which is adapted to be fitted within the smaller l en d of the handle A.

D is an S or twice-right-angled fitting, one end of which is exteriorly threaded at 5 and adapted to be screwed within the inwardlythreaded portion 3 of the nut O, which, as has been stated, is fitted within the smaller end of the handle A and is driven fitted therein to insure a tight closure. The opposite end of the S-fitting is inwardly threaded at 6. The fitting is drilled and threaded therein at 7, leading into the opening 8 within the fitting and provided with a screw-plug 9 for` the purpose of permitting the fitting to be cleaned.

E is a U-.shaped or second twice-right-angled fitting, being inwardly threaded at I() and 1l. and provided with an exteriorlythreaded extension I2. This fi. ting is also provided with a similar means for the purpose of permitting it to be cleaned as described in reference to the 'fitting E, as is designated by similar figures for the similar. parts. The Lil-shaped fitting is drilled and inwardly threaded at I3 and tapered to a I needle-pointed opening la.

l5 is a needle-pointed valve-stem threaded at 16 and adapted to be screwed within the fitting and engaged by thethreads 13 therein and provided with a thumb-nut 17. y

1S is a cap-nut fitted around the valve- IOO the inwardly-threaded portion 6 of the S-fiti ting. Within this pipe connection F is secured the wick 2l, which feedsthe fuel.

Secured on the threaded extension 12 of f the U-shaped connection E is the cylinder G,

which is an extension of the head II and which is inwardly threaded at 22 for the said purpose. The head His hollow, and the cylinder G is cast to it, the head and cylinder being composed 'of but a single casting.

23 are perforations for affording an adequate draft that the flame niay be extended within the head and against the point I. 'lhe point of the iron is secured to the head I-I by means of the bolts 24, which. are threaded on each end 25 and 26. The point I is drilled and threaded in the square end thereof at 27 to receive said bolts, which are extended through the head II, which is drilled for said purpose, as indicated by 28 of the end view of the head, as shown in Fig. 8, and secured by means of the nuts 29. '.lhe point I is hollow at 3() to allow the flame to extend therein, that the iron may be more readily heated at the point 31. Thesev points I of the iron are removably secured in this manner, that a number of sizes and different styles of points suitable for special kinds of work may be used on the same iron, thereby combining in a single tool all that which could but otherwise be accomplished by the use of several tools of various styles and sizes.

My device is operative as follows: The pump is removed from the handle, and the handle is filled with fuel, preferably gasolene. The pump is then screwed within the handle, and by the use of the pump air is forced into the handle, which forces the fuel through the several connections and fittings to the point ofthe needle-valve. The point is withdrawn from the opening, so as to allow the fuel to enter the cylinder of the iron head. The fuel is lighted through the perforations in the cylinder, and the flame is regulated by controlling the fuel-supply by means of the thumb-nut on the valve-stein, by which the valve is opened and closed. Within a few moments after lighting the fuel the iron will become heated and ready for use. By the closing of the needle-valve the supply' of fuel is cut of i and the flame extinguished.

The iron is made of any suitable material, but preferably of copper or brass.

Slight changes might be resorted to in the form and arrangement of the several parts Having described my invention, what I i claiin,`and desire to secure by Letters Patent,

l. In a selfheating soldering iron, the combination of a hollow handle constituting a fuel-reservoir, a hollow fitting secured at its l rear end portion to the forward end of said handle and twice right-angled to carry its forward end portion parallel to and offset from i said handle, a second hollow twice-right-angled fitting offset in the opposite direction, a a pipe-section connecting the opposed ends of said fittings, a needle-valve extending longi- J' tudinally forward into the forward end portion of the second fitting, and a burner-head connected with the forward end portion of i the second fitting and carrying a solderingpoint, said fittings and pipe-section constil tuting the fuel-duct and being the sole support for said head and soldering-point.

2. In a self-heating soldering-iron, the combination of a hollow handle constituting l a fuel-reservoir, a fitting -secured at its rear end portion to the forward end of said handle and comprising a casting cored out to progled to carry its forward end portion parallel to and offset from said handle, a second twiceright angled coredout casting having its rear end portion and its forward end portion in alinement with the forward end portion vide passage for the fuel and twice right-anand the rearend portion respectively of said other casting, a short straight pipe-section screwed into the opposed ends of said castings and containing a wick, a needle-valve handle and extending longitudinally forward into the forward end portion of the second casting, and a burner-head and solderingpoint connected with the forward end portion of the second casting, said castings and disposed in substantial alinement with the pipe-section constituting the sole support for said head and soldering-point.

3. In a self-heating soldering-iron, the y combination of a fuel-reservoir, a fuel-duct I leading therefrom, a burner-head having a l tubular portion connected to said duct and l having also an enlarged combustion-chain- I ber at the outer end of said tubular portion, a soldering-point, and connecting devices eX- tending from such point longitudinally of the combiistion-chamber and having enlarged heads bearing against the outside of the rear I wall thereof. l In testimony whereof I affix my signature in presence of two witnesses.

ROY WILLIAMS MARV ELL.

, Vitnesses: i W. T. STEEL, I Lnwis WOODLAND.

IOO

IOS 

